Margaret e



July 1o, 1923.4

1,461,279 E. E. LONGFELLOW LOCK 2 Sheetss--Sheet 2 Opiginal Filed Nov.8, 1920' INVENTOR ATTORNEY Patented July 10, 1923.

UNITED STATES ,PATENT seien.

ELLIS E. LoNGrELLow, or EL RENO, oKLnrioMA; rimas-.annie n. Lonernmiow,nanou- `'IRIX OF SAID ELLIS E.

LONGFELLGl/V, DECEASED.

LOCK.

.Application tiled November 8, 1920, Serial No. 422,550. RenewedDecember 1, 192%. i

To all 107mm t may concern:

Be' it known that I, ELLIs E. LoNeFnLLow, a citizen of the UnitedStates, residing at El Reno, `in the county of Canadian and State ofOklahoma, have` invented new and useful Improvements in Locks,.of whichthe following is a specification.'

My present invention has reference to an improved door lock.

' My object is to simplify and improve the existing art by producing adoor lock that shall comprise few simpleparts and wherein a single boltis employed for both latching and locking purposes, and in which a keyof aiparticular construction revolvesa normally latched barrel to bringan obstructing element carried by the latter to a position to permit ofthe free operation of the latch bolt on the turning of the knob spindleor to a position to prevent the retraction of the said bolt and hold thesame effectively in locking position.

Astill further object is the production of afdoor lock in which theemployment of tumblers is entirely dispe-nsed'with, and in which the keybarrel that carries the bolt obstructing element is disposed directlyforward of the knob spindle at the center of the lock casing, andwhereby the lock may be inserted in themortise in a door with either endup, thus obviating the necessityof arranging the lock at a certainposition before the same can be inserted in the mortise.

It is a further object to arrange in the lock casing a framedike `memberthat carries the combined latching and locking bolt, the longitudinalportions of the said `member being received in notched lugs andsurrounded by springs whichiexert a tension between the lugs and theouter element oi the member onwhich the bolt is arranged so that thebolt is normally vprojected through the bolt opening `in the casing, thespindle sleeve being provided .with the usual laterally projectedoppositely directed cam lugs that may be turned in either direction forretracting the latch bolt, `while the key/.barrel is engaged by av`guide that carries a spring influenced pin that enters notches in thebarrel for holding the same in desired positions, said pin beingretracte-dfby the key when theA `present themselves as the nature ofYthe invention is better understood, reference being l had to thedrawings accompanying land forming part oit this application.

In the drawings Figure `l is an elevation cfa door lock constructed inaccordance with this invention. i y

Figure 2 is a similar view with the face plate removed.

'Figure is a Sectional view approximately on the line 3-3 of Figure 2.`I

Figure l is a sectional view approximately on the line l--dotFigure 2.

Figure 5 is aview similar to Figure 2, but showing); theV combinedlatching and locking boltheld in' locking position.

Figure 6 is a perspective view of the latchu ing `bolt and the frame onwhich it is supported. w u

Figure 7 is a similar view of the key barrel.

Figure 8 is a similar view of the guide for the key barrel.

Figure 9 is a view of the spring influencedV pin carried by the guide.

i Figure l0 is a plan view oi the body por tiony of the lock casing withthe locking elements removed. l The door lock, illustrated in thedrawings is of the class designed to be received in the mortise of adoor7 and includes the usual substantially rectangular flanged casing lthat has its outer `edge 'closed bythe usual face plate EZ.v l'n thepresent instance, the face plate 2 is centrally provided with a substantially rectangular opening 3. The side plate of the casing5 to therear of the opening 3 has a roundopening il, notches 5 disposed to therear andr to the opposed sides of the wall provided by the opening 4, astud 6 to ther rear of the notches, a round opening 7 to the rear ofthestud and slotted lugs 8 -disposed slightly to the rear of the studand Vat equi-distance from the sides thereof.

The combined latching and locking bolt, indicated by the numeral "9 isdesigned to pass through the opening 3 in the face plate 2, and iscentrally secured on ka plate 10.

lTheV plate 10, adjacent to its ends has arranged thereon rearwardlyextending rods 11 which have their free ends connected by a second plate12. It will thus be noted that ythe bolt 9 is mounted on a substantiallyrectangular frame, and the parallel rods 11 ot the said frame aredesigned to be received inthe slots of the lugs 8. vOn the rods 11,andyexerting a tension between. theV lugs 8 andthe front plate 10 of theframe, are helical springs 13. The springs normally hold the boltprojected through the opening 1n thefece plate. Y

Y In the opening 7 there is arranged yone end of the spindle sleeve 14.This sleeve is profor the reception of' the spindle.

In the notches 5 are received .two of the fingers 16 which are providedon all of the corners of a cross sectionally U-shaped guide member 17.-The guide preferably has its rear wall thickened and its parallel topand bottom walls formed with arcuate depressions 18 at the centerthereof. The rear wall ofthe guide, indicated for distinction by thenumeral 19 is centrally provided with a round aperture20 which receivesoneend of a pin 21. On the pin is a flange or collar 22 againstwhic-h alight helical spring 23 contacts The opposite end of the pin is receivedinanaperture 24 in the stud 6. `The key barrel, broadly indicated'by thenumeral 25 has one of its reduced ends received in the opening 4 of thelock casing. The barrel, adjacent to its ends is provided with spacedlannular enlargements arranged in pairs, or what may be termed flanges.and which are indicated by the numeral 26.

These flanges are engaged rin the arcuate depressed portions of theparallel or flanged members of the guide 17. The body of the key barrelbetween the inner guide flanges has a desired number of spaced openingsv27 therethrough that enter the right angularly arranged slots .thatprovide the key ways 2S respectively. Any one of these slots is de- Jsigned to be engaged by the Vpin 21, so that the key'barrel can be heldat desired posi- -ti'onsin the casing. On the body of the key barrelthere is a lug or projection 29 that is designed, when the barrel isturned to one position, to either contact with or be arranged slightlyto the rear of the front plate 1() of the bolt frame, so that theboltcannot be moved inward of the casing. lhen in other positions, the.other slots 27 receive therein the spring pressed pin 21, so that thebarrel cannot be accidentally turned and also whereby a key of a specialdesign must be employed for causing the pin to be retracted out of theopenings in the barre] before the barrel can be turned. AIt is obviousthat by differently stepping the key ways in the barrel, varying shapedkeys must be employed for engaging and retracting the locking pin beforethe barrel can be turned to bring the obstructing element thereon intoor out of' bolt obstructing position. It is also vobvious that flat keysmust be employed.

Arranged lover the elements above described, and closing the openingside or face of the lock casing, is a cap plate 30. This plate isprovided with openings to receive the endet the barrel and the end ofthe spindle sleeve. The plate 30 is further provided with a screwopening which is arranged opposite the stud G. The stud 6 has a threadedbore, and a screw 31 is inserted through 5. In this manner the guide iseffectively heldagainst movement in the casing` and it is thought thatthe foregoing description, when taken in connection with the drawingswill fully set forth the simplicity and advantages of the construction,as well as the operation thereof, without further detailed description.

Having thus described the invention, what I claim, is

A door lock including a casing having la face plate provided with acentral bolt opening, a bolt arranged therein, a late secured totheinner face of the bolt and) disposed in the casing, rods connected withthe plate. a second plate connected to the ends of the rods, notchedlugs in the casing receiving the rods, springs on the rods contactingwith the lugs on the front plate, a spindle-sleeve in the casing havinglugs thereon in engagement with the rear plate, a key barrel havingright angular key ways therethrough and having spaced annular flangesproviding ways and openings between the ways, a lug projecting from theouter face of the barrel,l a substantially U-shaped guide removablysecured in the casing having its parallel members provided with arcuatedepresthe lug thereof in the path of Contact with sions which arereceived in the Ways,a,spring the front plate of the bolt, and the saidinuenced pin passing through the guides spring influenced pin designedt'o enter an- 10 and designed to enter one of the apertures of otheraperture in the barrel When said bar- 5 the barrel and to be retractedWhen the key relis in such position.

is inserted in the key Way of the barrel to In testimony whereof I aHXmy signature. permit of the turning of the barrel to bring ELLIS E.LONGF'ELLOV.

